阅读说明：本技术 一种自动排液除砂分离器 (Automatic flowing back degritting separator ) 是由 刘晓鹏 王长花 夏振杨 段亮 曲杰 张东长 胡洪波 张恩石 于 2021-08-04 设计创作，主要内容包括：本发明公开了一种自动排液除砂分离器,涉及除砂器技术领域,包括底座、以及设置在所述底座顶部的生产井进管,所述底座的顶部固定连接有壳体；所述生产井进管的端部安装有破乳器；本发明在安装时只需要安装一台设备,在不影响天然气井正常生产的情况下,便可以实现除砂与气液分离的功能,并且可以实现砂与液的自动排放,安装简单而且操作安全方便,该设备能够实现井口压力不高于额定值,不节流不减压,直接把井口天然气中的压裂砂及大量压裂液分离出来,该设备除砂效率高,可以实现连续排沙功能；防止了放喷初期大量的反排液夹杂着天然气直接排至大气容易造成闪爆危险,进而实现了对环境进行了一定程度的保护,节约了成本。(The invention discloses an automatic liquid discharge and sand removal separator, which relates to the technical field of sand removal devices and comprises a base and a production well inlet pipe arranged at the top of the base, wherein the top of the base is fixedly connected with a shell; the end part of the production well inlet pipe is provided with a demulsifying device; the device only needs to be installed during installation, can realize the functions of sand removal and gas-liquid separation under the condition of not influencing the normal production of the natural gas well, can realize the automatic discharge of sand and liquid, is simple to install and safe and convenient to operate, can realize that the pressure of a well mouth is not higher than a rated value, does not throttle and reduce pressure, can directly separate fracturing sand and a large amount of fracturing liquid in the natural gas of the well mouth, has high sand removal efficiency, and can realize the function of continuous sand discharge; the explosion hazard that is easily caused to the atmosphere has been prevented to a large amount of anti-drainage liquid of open flow initial stage and has been mingled with the natural gas and directly discharged to the atmosphere, and then has realized having carried out the protection of certain degree to the environment, has practiced thrift the cost.)

1. An automatic liquid discharge and sand removal separator comprises a base (1) and a production well inlet pipe (3) arranged at the top of the base (1), and is characterized in that the top of the base (1) is fixedly connected with a shell (2);

demulsifying ware (15) are installed to the tip that the production well advances pipe (3), keep away from coalescer (14) are installed at the top of demulsifying ware (15), keep away from mist trap (13) are installed at the top of coalescer (14), blow off pipe (6) are installed to the bottom of casing (2), electric valve (17) are installed to the lateral wall of blow off pipe (6), oil spout cover (7) are installed to the tip of blow off pipe (6), fluid-discharge tube (8) are installed at the top of oil spout cover (7), production well advances pipe (3) and runs through the lateral wall of casing (2) and extend to inside the lateral wall of demulsifying ware (15).

2. The automatic liquid discharge and sand removal separator according to claim 1, characterized in that an exhaust pipe (4) is installed at the top of the housing (2), a connecting port (5) is fixedly connected to the side wall of the housing (2), a connecting head (11) is fixedly connected to the side wall of the housing (2), an air inlet pipe (9) is fixedly connected to the top of the connecting head (11), a communicating pipe (12) is fixedly connected to the side wall of the housing (2), and the air inlet pipe (9) and the communicating pipe (12) are connected through a connecting piece.

3. An automatic drain-trap desanding separator according to claim 2, characterised in that the connection comprises a pneumatic regulating valve (16) and a connecting pipe (10); the top of the pneumatic regulating valve (16) is fixedly connected with the bottom of the connecting pipe (10).

4. The separator according to claim 1, characterized in that the outer side wall of the emulsion breaker (15) is fixedly connected with the inner side wall of the housing (2), the outer side wall of the mist catcher (13) is fixedly connected with the inner side wall of the housing (2), and the outer side wall of the coalescer (14) is fixedly connected with the inner side wall of the housing (2).

5. The separator according to claim 3, characterized in that the pneumatic control valve (16) is mounted on the side wall of the communicating tube (12), and the end of the connecting tube (10) is fixedly connected with the side wall of the air inlet tube (9).

6. The automatic drain-discharging and sand-removing separator as claimed in claim 2, characterized in that the end of the communicating pipe (12) is fixedly connected with the side wall of the sewage pipe (6), and the end of the communicating pipe (12) is arranged at the central position between the oil-spraying sleeve (7) and the electric valve (17).

Technical Field

The invention relates to the technical field of desanders, in particular to an automatic liquid discharge desanding separator.

Background

Desanders are devices that separate particles from gas, water, or wastewater streams; the desander is a secondary solid control device for treating the drilling fluid and is divided into a cyclone desander and a cyclone mud remover according to the different diameters of the cyclones, the combination of the cyclones above 6 ' is generally called as a desander, is a secondary solid control device in drilling operation, is commonly used as 10 ' and 12 ' cyclones, and is mainly used for separating solid-phase particles with the particle size of 47-76 mu m in the drilling fluid. According to the amount of the processing capacity required by a client, several groups of cyclones are selected to be combined into a desander. The cyclone desander is widely applied to desanding separation of petroleum drilling and non-excavation horizontal directional drilling.

The existing desander can only remove sand and can not discharge liquid when in use, only can manually discharge sand after the sand removal, and can only discharge liquid after the separation by a gas-liquid separator when in gas-liquid separation, so that the existing desander is high in danger, not environment-friendly and high in cost, and the problem is solved by the automatic liquid discharge desanding separator.

Disclosure of Invention

The invention aims to solve the problems that a desander in the prior art only can remove sand and can not discharge liquid, only can manually discharge sand after sand removal, and only can discharge liquid after separation by a gas-liquid separator during gas-liquid separation, so that the automatic liquid discharge and desanding separator is high in danger, not environment-friendly and high in cost.

In order to achieve the purpose, the invention adopts the following technical scheme:

an automatic liquid discharge and sand removal separator comprises a base and a production well inlet pipe arranged at the top of the base, wherein the top of the base is fixedly connected with a shell;

the production well advances the tip of pipe and installs the emulsion breaker, keeps away from the coalescer is installed at the top of emulsion breaker, keeps away from the mist trap is installed at the top of coalescer, the blow off pipe is installed to the bottom of casing, electric valve is installed to the lateral wall of blow off pipe, the oil spout cover is installed to the tip of blow off pipe, the fluid-discharge tube is installed at the top of oil spout cover, the production well advances the pipe and runs through the lateral wall of casing and extends to inside the lateral wall of emulsion breaker.

Preferably, the blast pipe is installed at the top of casing, the lateral wall fixedly connected with connector of casing, the top fixedly connected with intake pipe of connector, the lateral wall fixedly connected with communicating pipe of casing, the intake pipe with communicating pipe is connected through the connecting piece.

Preferably, the connector comprises a pneumatic regulating valve and a connecting pipe; the top of the pneumatic regulating valve is fixedly connected with the bottom of the connecting pipe.

Preferably, the outer side wall of the emulsion breaker is fixedly connected with the inner side wall of the shell, the outer side wall of the mist catcher is fixedly connected with the inner side wall of the shell, and the outer side wall of the coalescer is fixedly connected with the inner side wall of the shell.

Preferably, the pneumatic control valve is installed on the side wall of the communicating pipe, and the end of the connecting pipe is fixedly connected with the side wall of the air inlet pipe.

Preferably, the end of the communicating pipe is fixedly connected with the side wall of the sewage discharge pipe, and the end of the communicating pipe is arranged at the central position between the oil injection sleeve and the electric valve.

Compared with the prior art, the invention has the beneficial effects that:

1. the device only needs to be installed during installation, can realize the functions of sand removal and gas-liquid separation under the condition of not influencing the normal production of the natural gas well, can realize the automatic discharge of sand and liquid, is simple to install and safe and convenient to operate, can realize that the pressure of a well mouth is not higher than a rated value, does not throttle and reduce pressure, can directly separate fracturing sand and a large amount of fracturing liquid in the natural gas of the well mouth, has high sand removal efficiency, and can realize the function of continuous sand discharge; the explosion hazard that is easily caused to the atmosphere has been prevented to a large amount of anti-drainage liquid of open flow initial stage and has been mingled with the natural gas and directly discharged to the atmosphere, and then has realized having carried out the protection of certain degree to the environment, has practiced thrift the cost.

2. The vertical cyclone separation is utilized to add internal elements such as the gravity separation multistage coalescer, the emulsion breaker, the mist catcher and the like, so that liquid in natural gas is separated completely as much as possible, the resistance of a gas pipeline is reduced, and the normal operation of a gas collecting station is guaranteed to the maximum extent.

Drawings

FIG. 1 is a schematic front perspective view of an automatic fluid-drainage desanding separator according to the present invention;

FIG. 2 is a schematic diagram of a back cross-sectional three-dimensional structure of an automatic fluid-drainage desanding separator according to the present invention;

FIG. 3 is an enlarged schematic structural view of the separator for automatically discharging liquid and removing sand in FIG. 2;

fig. 4 is an enlarged schematic structural diagram of a position B in fig. 2 of the automatic draining and desanding separator provided by the invention.

In the figure: the device comprises a base 1, a shell 2, a production well inlet pipe 3, an exhaust pipe 4, a connector 5, a blow-off pipe 6, an oil spraying sleeve 7, a liquid discharge pipe 8, an air inlet pipe 9, a connecting pipe 10, a connector 11, a communicating pipe 12, a mist catcher 13, a coalescer 14, a demulsifier 15, a pneumatic regulating valve 16 and an electric valve 17.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-4, an automatic draining and desanding separator comprises a base 1 and a production well inlet pipe 3 arranged at the top of the base 1, wherein the top of the base 1 is fixedly connected with a shell 2;

the end part of the production well inlet pipe 3 is provided with a demulsifying device 15, the top part far away from the demulsifying device 15 is provided with a coalescing device 14, the top part far away from the coalescing device 14 is provided with a mist catcher 13, the bottom part of the shell 2 is provided with a sewage discharge pipe 6, the side wall of the sewage discharge pipe 6 is provided with an electric valve 17, the end part of the sewage discharge pipe 6 is provided with an oil spray sleeve 7, the top part of the oil spray sleeve 7 is provided with a liquid discharge pipe 8, and the production well inlet pipe 3 penetrates through the side wall of the shell 2 and extends into the side wall of the demulsifying device 15;

through the arrangement of the structure, the device can separate liquid in natural gas as far as possible, reduce resistance of a gas pipeline and guarantee normal operation of the gas collecting station to the maximum extent.

The top of the shell 2 is provided with an exhaust pipe 4, the side wall of the shell 2 is fixedly connected with a connector 5, the side wall of the shell 2 is fixedly connected with a connector 11, the top of the connector 11 is fixedly connected with an air inlet pipe 9, the side wall of the shell 2 is fixedly connected with a communicating pipe 12, and the air inlet pipe 9 is connected with the communicating pipe 12 through a connecting piece;

through the arrangement of the structure, the automatic discharge of liquid is realized, the burden of personnel is reduced, and the practicability of the personnel is facilitated.

Wherein, the connecting piece comprises a pneumatic regulating valve 16 and a connecting pipe 10; the top of the pneumatic control valve 16 is fixedly connected with the bottom of the connecting pipe 10.

Wherein, the outer side wall of the emulsion breaker 15 is fixedly connected with the inner side wall of the shell 2, the outer side wall of the mist catcher 13 is fixedly connected with the inner side wall of the shell 2, and the outer side wall of the coalescer 14 is fixedly connected with the inner side wall of the shell 2.

Wherein, the pneumatic control valve 16 is installed on the side wall of the communicating pipe 12, and the end of the connecting pipe 10 is fixedly connected with the side wall of the air inlet pipe 9.

Wherein, the end of the communicating pipe 12 is fixedly connected with the side wall of the sewage draining pipe 6, and the end of the communicating pipe 12 is arranged at the central position between the oil spraying sleeve 7 and the electric valve 17.

In the invention, a production well inlet pipe 3 is connected with a natural gas production well, then an air inlet pipe 9 is connected with a pipeline of an exhaust pipe 4, a blow-off pipe 6 is connected to a blow-off pool, and finally self-use gas used when a separator operates is reduced to three MPa at zero (the separator is the prior art, is not shown in the figure, and is not described in detail herein);

after the connection is completed, the liquid can be started to enter through the production well inlet pipe 3, the liquid is firstly processed by the emulsion breaker 15, the processed liquid is processed by the coalescer 14 and the mist catcher 13, the processed natural gas enters the exhaust pipe 4 to be discharged, the discharged natural gas circulates through the separator and the air inlet pipe 9, the pneumatic adjusting valve 16 is automatically adjusted through the connecting pipe 10, the processed liquid is automatically discharged through the drain pipe 6, the liquid discharged through the drain pipe 6 is subjected to solid-liquid separation through the oil spraying sleeve 7, and the liquid is discharged through the liquid discharge pipe 8.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.